Analysis of Parameter Sensitivity of Construction Control of Multi Span PC Continuous Beam Bridge with Corrugated Steel Webs

The construction control is very important to the construction quality of long-pan continuous beam bridge, so a self-adaptive construction control analysis method is proposed. A construction self-adaptive control system is established in this paper, which is based on the self-adaptive control theory and the characteristic of long-pan continuous beam bridge construction. The sensitivity analysis method is used to choose the most important parameters. The least squares method is utilized to parameter identification. The construction forecast control is also included in the construction self-adaptive control system. The analysis result of a beam bridge shows that the self-adaptive construction control analysis method is feasible and reasonable.

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Application of SCGM(1,1) Method in the Construction Monitoring and Control of Continuous Girder Bridges

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.178-181.2113 ◽

2012 ◽

Vol 178-181 ◽

pp. 2113-2116

Author(s):

Bao Fu Duan ◽

Cheng Bo Zhai ◽

Xian He Weng

Keyword(s):

Cross Sections ◽

Construction Control ◽

Continuous Beam ◽

Grey Prediction ◽

Monitoring And Control ◽

Girder Bridges ◽

Continuous Beam Bridge ◽

Control Section ◽

Beam Bridge ◽

And Control

This paper bases on building grey prediction model with the stress sequence of continuous beam bridge construction control section, discusses the application of the model in the construction control of the continuous beam bridge. SCGM (1, 1) dynamic model is based on test results of control cross-sections of Nanhe Bridge have been established for prediction, on the background of the construction of Nanhe Bridge, in Jiangsu province. The example shows that the prediction precision and adaptability of the model can achieve the requirements of the engineering construction, and the feasibility and adaptability of the construction control for bridge by using this model is validated to forecast the stress value in the practical construction control for a PC continuous bridge.

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Design and Analysis of Parameter Sensitivity of Prestressed Concrete Continuous Beam Bridge Inconstruction Control

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.638-640.1063 ◽

2014 ◽

Vol 638-640 ◽

pp. 1063-1066

Author(s):

Long Sheng Bao ◽

Tao Song ◽

Ling Yu

Keyword(s):

Sensitivity Analysis ◽

Cross Section ◽

Prestressed Concrete ◽

Stress Sensitivity ◽

Design Parameters ◽

Construction Control ◽

Calculation Error ◽

Continuous Beam ◽

Continuous Beam Bridge ◽

Beam Bridge

During the construction control in order to better control the elevation, the need for sensitivity analysis of the design parameters, the sensitivity analysis of design parameter adjustment principle, so as to adjust the measured deflection and deflection calculation error of judgment, and for the cross section should be the main design parameters of stress sensitivity. This method can identify accurately fast parameter error during the bridge construction, and ensure the smooth and long construction Liang Qiao. To provide reference for construction control of this kind of bridge deflection.

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